低温加热生产取向硅钢中MnS和Cu_2S的竞相析出  

MnS and Cu_2S Precipitation in Grain-Oriented Silicon Steel Produced by Low Slab Reheating Temperature Process

作　　者：肖丽俊[1] 项利[1] 岳尔斌[1] 仇圣桃[1] 干勇[1] 

机构地区：[1]钢铁研究总院连铸技术国家工程研究中心,北京100081

出　　处：《钢铁研究学报》2010年第4期48-51,共4页Journal of Iron and Steel Research

基　　金：科技部"十一五"国家支撑计划资助项目(2006BAE03A14)

摘　　要：针对薄板坯连铸连轧流程（TSCR）生产具有低温加热（〈1200℃）抑制剂成分取向硅钢,研究了薄板坯连铸、均热以及热连轧过程中MnS和Cu2S的析出特征,研究结果表明,连铸过程形成的MnS在1180℃下难以完全固溶,并形成尺寸为200~600 nm的粗大MnS粒子,而在此温度下Cu2S可以完全固溶并在热连轧过程中细小弥散析出,平均粒子尺寸约为30 nm,可以作为取向硅钢的有效抑制剂。The process of thin slab casting and technology has the characteristic of low heat temperature（1200℃） before rolling,however the production of grain-oriented silicon steel should have higher temperature（1350℃） to dissolute MnS particles precipitating during casting.To solve this problem,this paper mainly investigate the precipitation of MnS and Cu2S during thin slab casting,slab equalization and rolling,with the thermal calculation of MnS and Cu2S precipitation,the results showed that MnS mainly precipitated during casting and equalization at 1180℃,the particle size is approximately 200-600nm,Cu2S mainly precipitated during rolling and mean particle size is about 30nm.

关 键 词：铸坯低温加热 取向硅钢 硫化锰 硫化铜 抑制剂 

分 类 号：TG142.15[一般工业技术—材料科学与工程]